/*
 * Copyright (c) 2002 Boris Pruessmann and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Common Public License v0.5
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v05.html
 * 
 * Contributors:
 *    Boris Pruessmann - Initial implementation.
 */
package net.sourceforge.perforce.ui.action;

import java.lang.reflect.InvocationTargetException;

import net.sourceforge.perforce.core.PerforceException;
import net.sourceforge.perforce.core.resources.RemoteFile;
import net.sourceforge.perforce.ui.PerforceUIPlugin;
import net.sourceforge.perforce.ui.internal.Policy;
import net.sourceforge.perforce.ui.internal.RemoteFileEditorInput;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.ui.IEditorDescriptor;
import org.eclipse.ui.IEditorRegistry;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;

/**
  * @version $Revision: 34 $
  * @author  <a href="mailto:bpruessmann@users.sourceforge.net">Boris Pruessmann</a>
  */
public class OpenRemoteFileAction extends PerforceAction 
{
	// ------------------------------------------------------------------------------ Public Methods
	
	/** @see org.eclipse.ui.IActionDelegate#run(IAction) */
	public void run(IAction action) 
	{
		run(new IRunnableWithProgress()
		{
			public void run(IProgressMonitor monitor)
				throws InvocationTargetException, InterruptedException
			{
				IWorkbench workbench = PerforceUIPlugin.getPlugin().getWorkbench();
				IWorkbenchPage page = workbench.getActiveWorkbenchWindow().getActivePage();

				IEditorRegistry registry = workbench.getEditorRegistry();
					
				RemoteFile[] files = getSelectedRemoteFiles();
				for (int i = 0; i < files.length; i++)
				{
					if (files[i].isDeleted())
					{
						MessageDialog.openError(getShell(), 
							Policy.bind("OpenLogEntryAction.deletedTitle"),            //$NON-NLS-1$
							Policy.bind("OpenLogEntryAction.deleted"));                //$NON-NLS-1$
					}
					else
					{	
						String filename = files[i].getName();
						IEditorDescriptor descriptor = registry.getDefaultEditor(filename);
						
						String id;
						if (descriptor == null) 
						{
							id = "org.eclipse.ui.DefaultTextEditor";                   //$NON-NLS-1$
						}
						else 
						{
							id = descriptor.getId();
						}

						try 
						{
							page.openEditor(new RemoteFileEditorInput(files[i]), id);
						} 
						catch (PartInitException e) 
						{
							throw new InvocationTargetException(e);
						}
					}
				}
			}
		}, PROGRESS_BUSYCURSOR); 
	}

	// --------------------------------------------------------------------------- Protected Methods

	/** @see net.sourceforge.perforce.ui.action.PerforceAction#isEnabled() */
	protected boolean isEnabled() 
		throws PerforceException 
	{
		RemoteFile[] files = getSelectedRemoteFiles();
		if (files.length == 0)
		{
			return false;
		}
		
		return true;
	}
}
